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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/Atomics/notify/undefined-index-defaults-to-zero.js | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/notify/undefined-index-defaults-to-zero.js b/js/src/tests/test262/built-ins/Atomics/notify/undefined-index-defaults-to-zero.js new file mode 100644 index 0000000000..7533c65f53 --- /dev/null +++ b/js/src/tests/test262/built-ins/Atomics/notify/undefined-index-defaults-to-zero.js @@ -0,0 +1,76 @@ +// |reftest| skip-if(!this.hasOwnProperty('Atomics')||!this.hasOwnProperty('SharedArrayBuffer')||(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration()['arm64-simulator'])) -- Atomics,SharedArrayBuffer is not enabled unconditionally, ARM64 Simulator cannot emulate atomics +// Copyright (C) 2018 Amal Hussein. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-atomics.notify +description: > + An undefined index arg should translate to 0 +info: | + Atomics.notify( typedArray, index, count ) + + 2.Let i be ? ValidateAtomicAccess(typedArray, index). + ... + 2.Let accessIndex be ? ToIndex(requestIndex). + + 9.If IsSharedArrayBuffer(buffer) is false, throw a TypeError exception. + ... + 3.If bufferData is a Data Block, return false + + If value is undefined, then + Let index be 0. +includes: [atomicsHelper.js] +features: [Atomics, SharedArrayBuffer, TypedArray] +---*/ + +var WAIT_INDEX = 0; +var RUNNING = 1; + +var NUMAGENT = 2; + +for (var i = 0; i < NUMAGENT; i++) { + $262.agent.start(` + $262.agent.receiveBroadcast(function(sab) { + const i32a = new Int32Array(sab); + + // Notify main thread that the agent was started. + Atomics.add(i32a, ${RUNNING}, 1); + + // Wait until restarted by main thread. + var status = Atomics.wait(i32a, ${WAIT_INDEX}, 0); + + // Report wait status. + $262.agent.report(status); + + $262.agent.leaving(); + }); + `); +} + +const i32a = new Int32Array( + new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4) +); + +$262.agent.safeBroadcast(i32a); + +// Wait until both agents started. +$262.agent.waitUntil(i32a, RUNNING, NUMAGENT); + +// Try to yield control to ensure the agents actually started to wait. +$262.agent.tryYield(); + +// Notify at index 0, undefined => 0. +var woken = 0; +while ((woken = Atomics.notify(i32a, undefined, 1)) === 0) ; +assert.sameValue(woken, 1, 'Atomics.notify(i32a, undefined, 1) returns 1'); + +assert.sameValue($262.agent.getReport(), 'ok', '$262.agent.getReport() returns "ok"'); + +// Notify again at index 0, default => 0. +var woken = 0; +while ((woken = Atomics.notify(i32a /*, default values used */)) === 0) ; +assert.sameValue(woken, 1, 'Atomics.notify(i32a /*, default values used */) returns 1'); + +assert.sameValue($262.agent.getReport(), 'ok', '$262.agent.getReport() returns "ok"'); + +reportCompare(0, 0); |